package com.web;



import com.alibaba.druid.pool.DruidDataSourceFactory;

import javax.sql.DataSource;
import java.sql.Connection;
import java.util.Properties;

/**
 * 数据源工具类
 */
public class DataSourceUtils {
    //数据源
    private static DataSource dataSource;
    //初始化数据源
    static{
        //读取配置文件的对象
        Properties properties = new Properties();
        try {
            //读取配置文件
            properties.load(DataSourceUtils.class.
                 getClassLoader().getResourceAsStream("druid.properties"));
            //初始化数据源
            dataSource = DruidDataSourceFactory.createDataSource(properties);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 获取数据库连接
     */
    public static Connection getConnection(){
        if(dataSource != null){
            try {
                return dataSource.getConnection();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return null;
    }
}
